if this is true, most people will fall through the floor
所有跟帖:
• 回复:if this is true, most people will fall through the floor -bingxiao2011- ♀ (62 bytes) () 07/06/2013 postreply 08:38:10
• 40PSF 是 unit live load. -bingxiao2011- ♀ (0 bytes) () 07/06/2013 postreply 08:47:23
• 顶一下,bingxiao2011是对的,除非特别设计,一般就是40PSF -稻穗儿- ♀ (0 bytes) () 07/06/2013 postreply 09:33:38